Phosphorus oxychloride → HCID 60108780, Verbindung

HRID 1296582Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1296582
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][C:11](O)([C:14]2[CH:15]=[CH:16][CH:17]=[C:18]3[C:22]=2[NH:21][CH:20]=[CH:19]3)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].P(Cl)(Cl)(Cl)=O>N1C=CC=CC=1>[C:1]([O:5][C:6]([N:8]1[CH2:9][CH:10]=[C:11]([C:14]2[CH:15]=[CH:16][CH:17]=[C:18]3[C:22]=2[NH:21][CH:20]=[CH:19]3)[CH2:12][CH2:13]1)=[O:7])([CH3:4])([CH3:2])[CH3:3]

Komponenten

4

Edukt 2

HCID 24813Phosphorus oxychlorideHCID 60108792HCID 60108792, Verbindung

Produkt 1

HCID 60108780HCID 60108780, VerbindungAusbeute 64 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 1049PyridineLösungsmittel

Versuchsvorschrift

4-Hydroxy-4-(1-H-indol-7-yl)-piperidine-1-carboxylic acid tert-butyl ester XVI (1.17 g, 3.7 mmol) was combined with pyridine (20 mL) and phosphorus oxychloride (0.7 mL, 7.4 mmol) at room temperature under nitrogen, and was stirred overnight. The reaction was partitioned between ethyl acetate (55 mL) and water (55 mL). The ethyl acetate layer was washed with water (2×30 mL) and brine (55 mL), then dried (MgSO4), filtered and concentrated to afford (700 mg, 64%) of 4-(1H-indol-7-yl)-3,6-dihydro-2H-pyridine-1-carboxylic acid tert-butyl ester XVII.

Aufarbeitung

  1. customThe reaction was partitioned between ethyl acetate (55 mL) and water (55 mL)
  2. washThe ethyl acetate layer was washed with water (2×30 mL) and brine (55 mL)
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag
ord-63ecb31433234779858df98efec83f99
Quelldatensatz
uspto-grants-2007_07
Patentnummer
US07247651B2

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